Review : MSI RTX 4090 Suprim Liquid X


Specifications and PCB:

The technical specifications:

In terms of frequency, the base frequency is announced at 2235 MHz while the Boost is at 2625 MHz. The 24 GB of G-DDR6 memory run at 1313 MHz (1008 GB/s) on a 384 bit bus. Our MSI RTX 4090 Suprim Liquid X benefits from a very good factory overclocking compared to the NVIDIA Founders Editioncard, since it has a Boost frequency of 2520 MHz. The memory frequency is also 1313 MHz. We went through GPU-Z to check that the information read is correct. The GPU frequency is 2235 MHz, and the Boost frequency is 2625 MHz. Don’t forget that the latter will be higher during benchmarks depending on the quality of your chip and determined by GPU Boost4.0. The memory has a frequency of 1313 MHz. We remind you how the GPU Boost works here.

Let’s unpack the PCB:

Let’s look at the PCB of our samplein detail. First of all, no surprise, the chip that equips our model is indeed the AD102 whose size is 608 mm². This is an in-house PCB from MSI and is different from the one offered by NVIDIA on its Founders Edition board.

Let’s now deal with the VRM, Voltage Regulator Module. It is a Monolithic Power Systems MP2891 controller that will supply the GPU with the right voltage and current. Our RTX 4090 Suprim Liquid X has 26 + 4 phases for a total of 30, yes, 30 phases. The number of phases is often determined by the current requirement of the graphics chip. The more current it needs, the more phases it has.

MSI had the good idea to distribute the power phases on both sides of the GPU. There are 14 on the left and 12 on the right. This will allow not to concentrate the heat produced by them on a single area of the PCB but to have a more homogeneous distribution! Such a choice should also allow a better stability in the voltage brought to the GPU. The mosfets are Monolithic Power Systems MP86957. The mosfets are the elements to keep cool and are often topped by a heat sink. They are the ones that will convert the direct current since our GPU does not work in 12 or 5 volts, but on a lower voltage often located around 1 volt.

Regarding the GDDR6X memory chips, there are 12 of them, D8BZC of 2 GB and are manufactured by Micron with an operating frequency of 1313 MHz.